Re: Infectious Bursitis?
A couple of things come to mind...
I don't know how old you are or if you are taking any meds, but if you are taking any kind of medication do a thorough investigation regarding side effects. Doctors often overlook or deny med symptoms...they'd rather test and test and test (as it is more lucrative) than simply discontinue a med.
Secondly, if the doctors can't find anything, I'd suggest doing some serious reading about the bacterial infections (lyme disease) caused by tick bites. Several red flags in your post suggested this might be a possibility (the fact that you have an unidentifed infection going on, the relatively sudden onset of symptoms, and the kinds of symptoms) .....but you'll have to do the investigative work yourself. FEW doctors have the knowledge and experience to diagnose this condition, despite what they'll tell you.
Lyme can impact many many different sysytems in the body...some people experience a rash or a series of rashes after a tick bite...but others, have recurring yeast/feminine infections, popping joints, sleep difficulites, etc.